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For a positive integer $n$, $\phi(n)$ denotes the number of positive integers less than or equal to $n$ that are relatively prime to $n$.

What is $\phi(99)$?

 Jun 23, 2024
 #1
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phi (99)  =  [ (99) / (3 * 11) ] * (3-1)(11-1)  = (3 ) (2) (10)  =  60

 

cool cool cool

 Jun 23, 2024

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